Transmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach

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dc.creatorAraujo, M. A. N.
dc.creatorDugaev, V. K.
dc.creatorVieira, V. R.
dc.creatorBerakdar, J.
dc.creatorBarnas, J
dc.date2006-10-09
dc.date.accessioned2026-07-07T07:41:24Z
dc.date.available2026-07-07T07:41:24Z
dc.descriptionThe transmission of correlated electrons through a domain wall in a ferromagnetic one dimensional system is studied theoretically in the limit of a domain wall width smaller or comparable to the electron Fermi wavelength. The domain wall gives rise to both potential and spin dependent scattering of the charge carriers. Using a poor man's renormalization group approach for the electron-electron interactions, we obtain the low temperature behavior of the reflection and transmission coefficients. The results show that the low-temperature conductance is governed by the electron correlations, which may suppress charge transport without suppressing spin current. The results may account for a huge magnetoresistance associated with a domain wall in ballistic nanocontacs.
dc.description13 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0610235
dc.identifierhttp://arxiv.org/abs/cond-mat/0610235
dc.identifierPhysical Review B 74, 224429 (2006)
dc.identifierdoi:10.1103/PhysRevB.74.224429
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122094
dc.subjectStrongly Correlated Electrons
dc.titleTransmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach
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